The TMC2209 has all the functions of the TMC2208, it can be replaced directly. The TMC2209 have a better heat dissipation, support a higher current and the Sensorless Homing version.

Features:

1. Ultra quiet.
2. Great heat dissipation.
3. Compatible with Sensorless homing function.
4. Supports UART mode by configuring jumpers.
5. It is compatible with popular mainboards like SKR , MKS, Ramps 1.4 mainboard.

Specifications:

1. Default current: 1.25A
2. Maximum current: 2.5A
3. Logic voltage: 3.3 / 5 V
4. Input voltage: 5.5 / 28 V
5. Microstep: 1/256
6. Mode: Step / dir – UART

Microsteps:

Notice: Pay attention to the orientation of the connection, if it is connected wrongly, they can be damaged.

Open Source File/Instructions:

Get more instructions from the source Here